Israel Electrician Licensing Exam case studies
Israel Electrician Licensing Exam · Put your knowledge to work in context.
The Israel Electrician Licensing Exam is the assessment through which candidates demonstrate the knowledge required to hold an electrician's licence in Israel. It is intended for practising electricians and apprentices who need formal recognition of their competence, as well as for immigrants with electrical training from abroad who seek to work in the Israeli trade. The Israel Electrician Licensing Exam case studies are 5 cases and about 3,004 words.
1Kitchen Hob Replacement in a 230 V Apartment
An apartment renovation in Tel Aviv has a single-phase 230 V supply, a 25 A main incoming circuit breaker and a 30 mA RCD at the origin. The owner wants to replace a gas hob with a 7.2 kW induction hob and keep the existing 3.0 kW water heater on the same kitchen final circuit.
661 words, about 3 min2TT System Motor Fault and RCD Disconnection
A small metalworking workshop is supplied from a TT system at 400/230 V. The main board has a 63 A three-phase incoming breaker and a 300 mA type AC RCD at the origin.
634 words, about 3 min3Temporary Construction Supply for a Circular Saw
A construction site office and workshop are fed from a 400/230 V TN-S temporary supply. The main temporary board has a 100 mA RCD at the origin and 30 mA RCDs on the socket-outlet circuits.
607 words, about 3 min4Insulation Resistance Failure During Periodic Inspection
During a periodic inspection of a 230 V TN-C-S apartment, the electrician isolates the installation and performs a 500 V DC insulation resistance test between live conductors and the protective earth. The whole-installation reading is 0.6 MΩ.
510 words, about 3 min5DOL Starting of a 22 kW Motor on a 250 kVA Transformer
A factory has a 250 kVA, 400 V, 50 Hz transformer with a short-circuit impedance of 5.5%. The existing balanced load is 120 kVA at 0.85 power factor.
592 words, about 3 min